<!--
 * @Description: 列表组件，用于首页、全部商品页面的商品列表
 * @Author: hai-27
 * @Date: 2020-02-07 16:23:00
 * @LastEditors: hai-27
 * @LastEditTime: 2020-04-05 13:22:22
 -->
<template>
  <div id="myList" class="myList">
    <ul>
      <div v-for="(item, index) in list" :key="item.product_id" class="box">
        <!--showLength为展示的产品个数-->
        <li v-show="index < showLength">
          <el-popover placement="top">
            <p>确定删除吗？</p>
            <div style="text-align: right; margin: 10px 0 0">
              <el-button
                type="primary"
                size="mini"
                @click="deleteCollect(item.productId)"
                >确定</el-button
              >
            </div>
            <i
              class="el-icon-close delete"
              slot="reference"
              v-show="isDelete"
            ></i>
          </el-popover>
          <router-link
            :to="{
              path: 'goods/details',
              query: { productID: item.productId },
            }"
            @click="routerRefresh"
          >
            <!-- <img :src="$target + item.productPicture" alt /> -->
            <img
              :src="
                (item.productPicture.indexOf('http') ? $target : '') +
                item.productPicture
              "
              alt
            />
            <h2>{{ item.productName }}</h2>
            <h3>{{ item.productTitle }}</h3>
            <!-- <p>
              <span>{{ item.productSellingPrice }}元</span>
              <span
                v-show="item.productPrice != item.productSellingPrice"
                class="del"
                >{{ item.productPrice }}元</span
              >
            </p> -->
          </router-link>
          <slot :scope="item"></slot>
        </li>
      </div>

      <li v-show="isMore && list.length > 1" id="more">
        <router-link
          :to="{ path: '/goods', query: { categoryID: categoryID } }"
        >
          浏览更多
          <i class="el-icon-d-arrow-right"></i>
        </router-link>
      </li>
    </ul>
  </div>
</template>
<script>
export default {
  name: "MyList",
  // list为父组件传过来的商品列表
  // isMore为是否显示“浏览更多”
  // showLength为父组件传过来的展示的产品个数
  props: ["list", "isMore", "isDelete", "showLength"],
  data() {
    return {};
  },
  computed: {
    // 通过list获取当前显示的商品的分类ID，用于“浏览更多”链接的参数
    categoryID: function () {
      let categoryID = [];
      if (this.list != "") {
        for (let i = 0; i < this.list; i++) {
          const id = this.list[i].categoryId;
          if (!categoryID.includes(id)) {
            categoryID.push(id);
          }
        }
      }
      return categoryID;
    },
  },
  methods: {
    /*来摧毁<router-link>，然后再重新创建<router-link>起到刷新页面的效果*/
    routerRefresh() {
      this.setRouterAlive(false);
      this.$nextTick(() => {
        this.setRouterAlive(true);
      });
    },
    deleteCollect(productId) {
      this.$axios
        .post(
          "collect/deleteCollect",
          {
            user_id: this.$store.getters.getUser.userId,
            productId: productId,
          },
          { withCredentials: true }
        )
        .then((res) => {
          switch (res.data.code) {
            case "001":
              // 删除成功
              // 删除删除列表中的该商品信息
              for (let i = 0; i < this.list.length; i++) {
                const temp = this.list[i];
                if (temp.productId == productId) {
                  this.list.splice(i, 1);
                }
              }
              // 提示删除成功信息
              this.notifySucceed(res.data.msg);
              break;
            default:
              // 提示删除失败信息
              this.notifyError(res.data.msg);
          }
        })
        .catch((err) => {
          return Promise.reject(err);
        });
    },
  },
};
</script>
<style scoped>
.myList ul li {
  z-index: 1;
  float: left;
  width: 234px;
  height: 280px;
  padding: 10px 0;
  margin: 0 0 14.5px 13.7px;
  background-color: white;
  -webkit-transition: all 0.2s linear;
  transition: all 0.2s linear;
  position: relative;
}
.myList ul li:hover {
  z-index: 2;
  -webkit-box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  -webkit-transform: translate3d(0, -2px, 0);
  transform: translate3d(0, -2px, 0);
}
.myList ul li img {
  display: block;
  width: 160px;
  height: 160px;
  background: url(../assets/imgs/placeholder.png) no-repeat 50%;
  margin: 0 auto;
}
.myList ul li h2 {
  margin: 25px 10px 0;
  font-size: 14px;
  font-weight: 400;
  color: #333;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.myList ul li h3 {
  margin: 5px 10px;
  height: 18px;
  font-size: 12px;
  font-weight: 400;
  color: #b0b0b0;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.myList ul li p {
  margin: 10px 10px 10px;
  text-align: center;
  color: #ff6700;
}
.myList ul li p .del {
  margin-left: 0.5em;
  color: #b0b0b0;
  text-decoration: line-through;
}
.myList #more {
  text-align: center;
  line-height: 280px;
}
.myList #more a {
  font-size: 18px;
  color: #333;
}
.myList #more a:hover {
  color: #ff6700;
}
.myList ul li .delete {
  position: absolute;
  top: 10px;
  right: 10px;
  display: none;
}
.myList ul li:hover .delete {
  display: block;
}
.myList ul li .delete:hover {
  color: #ff6700;
}
/* .box {
  display: flex;
  flex-direction: column;
} */
</style>